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Infineon Technologies BAR74E6327HTSA1
- Part No.:
- BAR74E6327HTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAR74E6327HTSA1.pdf
- Description:
- DIODE GEN PURP 50V 250MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:8,910
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Product details
Overview
BAR74E6327HTSA1 from Infineon Technologies is a silicon switching diode in SOT-23 package, rated for 50 V reverse voltage, 250 mA forward current, and 4 ns reverse recovery time-designed for high-speed signal routing in automotive infotainment power management circuits.
For engineers reviewing the BAR74E6327HTSA1 datasheet, BAR74E6327HTSA1 pinout, BAR74E6327HTSA1 application, or BAR74E6327HTSA1 equivalent, key selection criteria include trr ≤ 4 ns, VF ≤ 1.0 V at 100 mA, IR ≤ 100 µA at 150°C, RthJS ≤ 260 K/W, and AEC-Q101 qualification for under-hood switching.
Technical Context
This diode operates as a fast-switching unidirectional rectifier with low junction capacitance (CT = 2 pF at 0 V, 1 MHz) and thermally robust construction-enabling clean edge transitions in PWM-driven LED bias and CAN bus protection clamping stages.
Its single-diode configuration, SOT-23 footprint, and specified surge capability (IFS = 4.5 A, t = 1 µs) support transient-tolerant signal path isolation in 12 V automotive subsystems without external snubbing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 50 V - supports operation across standard 12 V automotive supply rails with 4× safety margin |
| Reverse Recovery Time (trr) | 4 ns - enables reliable switching up to ~85 MHz in clock distribution or data line steering |
| Forward Voltage (VF) | ≤1.0 V at IF = 100 mA - minimizes conduction loss in low-voltage logic-level signal gating |
| Junction-to-Solder Point Thermal Resistance (RthJS) | ≤260 K/W - allows 370 mW dissipation with ≤96 K rise above PCB solder point |
| Surge Forward Current (IFS) | 4.5 A for 1 µs - withstands ESD-induced transients per IEC 61000-4-2 Level 4 (8 kV contact) |
| Junction Temperature (Tj) | 150 °C - qualified for engine bay mounting with derated current above 100 °C ambient |
Pinout & Package
SOT-23 package: 3-pin surface-mount plastic case with gull-wing leads; pin 1 = anode, pin 2 = cathode, pin 3 = not connected (NC) - verified per Infineon package outline EHS BCW66 and marking layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Main current entry point; connects to higher-potential node in forward-biased switching paths |
| Pin 2 | Cathode | Main current exit point; ties to reference or return path; polarity-sensitive for ESD clamping |
| Pin 3 | No Connect (NC) | Internally isolated; must remain unconnected on PCB to avoid parasitic coupling or thermal stress |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47 |
| Low Reverse Recovery Charge (Qrr) | Implied by trr = 4 ns and IF/IR = 10 mA - reduces switching loss and ringing in flyback snubbers |
| Pb-Free RoHS Compliance | Meets EU Directive 2011/65/EU; compatible with lead-free reflow profiles (peak 260 °C) |
| Thermal Derating Curve | IF drops linearly from 250 mA at TS = 25 °C to 0 mA at TS = 120 °C - enables precise thermal design in sealed enclosures |
Applications
| Automotive Door Module Switching | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Isolating microcontroller GPIO lines driving window lift motor drivers in door control units. IC Role / Device Role / Timing Role: High-speed switch enabling bidirectional signal blocking during fault conditions. Use Value: 4 ns trr prevents pulse distortion in 10 kHz PWM enable signals; 50 V VR accommodates load-dump transients. | Use Scenario: Clamping D+ and D− lines against ESD events in vehicle-mounted USB hubs. IC Role / Device Role / Timing Role: Low-capacitance (2 pF) transient suppressor placed before USB PHY input pins. Use Value: CT = 2 pF avoids signal integrity degradation at 480 Mbps; IR < 100 nA preserves bus leakage budget. |
| Infotainment Display Backlight Control | Body Control Module Power Sequencing |
Use Scenario: Enabling/disabling LED backlight strings via MCU-controlled current paths. IC Role / Device Role / Timing Role: Fast turn-off switch minimizing tail current during dimming transitions. Use Value: VF ≤ 1.0 V limits voltage drop in 3.3 V rail-fed LED drivers; SOT-23 footprint saves space on dense display PCBs. | Use Scenario: Controlling power-up sequence of LIN transceivers and sensor interfaces. IC Role / Device Role / Timing Role: Delayed-enable diode gate in multi-rail sequencing networks. Use Value: AEC-Q101 rating ensures startup reliability after cold cranking; 250 mA IF supports 50 mA control rail loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAS16H,632 | trr = 4 ns (same), but VF = 1.25 V @ 100 mA; RthJS = 300 K/W | Higher VF increases conduction loss in battery-powered modules | Prefer BAR74E6327HTSA1 where <1.0 V VF and thermal efficiency are critical |
| 1N4148W-7-F | trr = 4 ns (same), but not AEC-Q101 qualified; IR = 25 nA @ 25°C (lower) | Not approved for automotive production; limited to industrial/commercial use | Choose BAR74E6327HTSA1 for OEM automotive BOMs requiring qualification evidence |
Compared with BAS16H,632 and 1N4148W-7-F, BAR74E6327HTSA1 uniquely combines AEC-Q101 compliance, sub-1.0 V forward drop, and ≤260 K/W thermal resistance-making it optimal for thermally constrained, safety-critical automotive signal switching.
Availability
BAR74E6327HTSA1 is available at Aetrix Electronics and suitable for automotive body electronics, infotainment power sequencing, and USB interface protection requiring stable component supply and long-term lifecycle assurance.
Supply support for BAR74E6327HTSA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs and discrete devices.
The BAR74 series belongs to Infineon's AEC-Q101-qualified high-speed switching diode product line, engineered specifically for signal integrity and reliability in automotive power and communication subsystems.
FAQ
Is BAR74E6327HTSA1 pin-compatible with BAS16?
Yes-both use SOT-23 with identical pin 1 (anode), pin 2 (cathode), pin 3 (NC) assignment. However, BAR74E6327HTSA1 offers lower VF (≤1.0 V vs. 1.25 V) and tighter thermal resistance (≤260 K/W vs. 300 K/W), making it preferable for thermally sensitive layouts.
What is the maximum operating temperature for continuous DC operation?
Continuous DC operation is rated up to TJ = 150 °C. At TA = 85 °C, derating begins at TS = 54 °C; full 250 mA forward current is only permissible below TS = 25 °C. Above 100 °C ambient, IF must be reduced per the published IF vs. TS curve.
Does BAR74E6327HTSA1 support bidirectional signal switching?
No-it is a unidirectional silicon switching diode. It conducts only when anode voltage exceeds cathode by ≥VF (~0.7–1.0 V). For bidirectional AC signal routing, a dual-diode configuration or analog switch IC would be required instead.
Can BAR74E6327HTSA1 replace 1N4148 in automotive designs?
Only if AEC-Q101 qualification is not required. While electrical specs (trr, VR, VF) are similar, BAR74E6327HTSA1 is explicitly qualified to AEC-Q101, whereas 1N4148 variants lack this validation-making BAR74E6327HTSA1 mandatory for Tier 1 automotive production BOMs.
BAR74E6327HTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 250mA
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 100 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 4 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 50 V
- Capacitance @ Vr, F:
- 2pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT23
- Operating Temperature - Junction:
- -65°C ~ 150°C
BAR74E6327HTSA1 FAQ
1.How can I place an order for BAR74E6327HTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAR74E6327HTSA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BAR74E6327HTSA1 reliable?
The price and inventory of BAR74E6327HTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAR74E6327HTSA1 is usually 5 days.
3.What payment methods are accepted for BAR74E6327HTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAR74E6327HTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAR74E6327HTSA1?
BAR74E6327HTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAR74E6327HTSA1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BAR74E6327HTSA1?
For technical support, including BAR74E6327HTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAR74E6327HTSA1 requirements.
6.How does Aetrix verify that BAR74E6327HTSA1 is sourced from the original manufacturer or authorized distributors?
All BAR74E6327HTSA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BAR74E6327HTSA1 meets industry standards.
7.What is the process for return or replacement of BAR74E6327HTSA1?
All BAR74E6327HTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BAR74E6327HTSA1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BAR74E6327HTSA1 part is unused and in its original packaging.
Return procedure for BAR74E6327HTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAR74E6327HTSA1 Tags
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1N4448X-TP
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1N4148WX-TP
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1N4148TR
onsemi
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MMSD4148T1G
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MMBD914LT3G
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BAS16HT1G
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1N914BWT
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BAS21LT1G
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BAS16LT1G
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BAV21W-7-F
Diodes Incorporated
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